4 ideas of tone generator circuit using FET, SCR, transistors
This is simple Warble tone generator circuit , use scr as main of oscillator and signal will be boost, then feedback to SCR again. Output is 32 ohms speaker [….] Read more
3 to 5 LED chaser circuits using Arduino, with control potentiometer
Have you ever built a LED running light circuit? Many people like these circuits, me too. I am going to show you how to use the LED chaser circuit using Arduino. We can easily apply or change coding. And once you know the working principle. Creating a 12 LED chaser circuit is also not difficult. … Read more
How to use Push button | Toggle Switch on-off | with Arduino
Learn using Push Button switch or others on Arduino, to digital Input. And with coding we change it to toggle on-off and more types. Read more
Blink 2 LED flasher using Arduino
Today we will make a 2 LED flasher using Arduino (UNO) Usual we use a transistors circuit to make two LED flasher. This we will study programing C code on Arduino. It is easy to learn. Step to step by Chayapol. Lets go! Figure 1 Define pictograms,easy to understand Figure 2 Set the diagram programing … Read more
6 LED voltage indicator circuits
This is four circuits of LED voltage indicator are simple and easy to builds for check voltage battery and others, use as zener,transistor,LM339 and more Read more